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Camera is functional, frame rate is as expected, but image is black
•
Verify that the lens iris is open.
•
Aim the Genie at a bright light source.
•
Check that the programmed exposure duration is not too short or set it to maximum. See "Exposure
Controls" on page
•
Using CamExpert set the Genie to output its Internal Pattern Generator. This step is typically done for
any camera installation to quickly verify the Genie and its software package. See "Internal Image Test
Patterns" on page 64
Grab has Random Bad Data or Noise
The problem is seen as random noise and missing sections of video data from the acquisition. All configuration
parameters seem correct and the Ethernet cable is secure. The following image shows an example of this type of bad
acquisition while testing a Genie installation with CamExpert (with the Genie set to generate its internal test
pattern).
Following are various examples of this data transmission problem. The solutions vary but commonly involve
reducing the maximum packet size claimed by the NIC used.
Grab has Random Bad Data or Noise – Case 1
•
This problem has been seen on some computers where the NIC used does not fully support passing the
maximum jumbo frame possible from the Genie.
•
In the NIC configuration, keep the jumbo frame size set to the maximum allowed. See "Increasing Adapter
Buffers and Jumbo
Frames" on page
•
Using CamExpert, test for a good acquisition by reducing the Genie packet size used. See "CamExpert GigE
Vision
Parameters" on page
Grab has Random Bad Data or Noise – Case 2
•
This problem has been seen with network adapters using the Realtek RTL8169 chip and associated low-level
driver. In this case the NIC reports a false maximum jumbo frame size.
Genie Monochrome Series-GigE Vision Camera
44.
for information on using CamExpert to select internal patterns from Genie.
24.
67. Also check for packet resend messages with the Sapera tool "Log Viewer".
Troubleshooting • 121
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